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Schwerpunktprogramm (SPP) 1685: Ecosystem nutrition: forest strategies for limited phosphorus resources; Ökosystemernährung: Forststrategien zum Umgang mit limitierten Phosphor-Ressourcen, Regulation of microbial activities, structure and function of microbial communities

In the frame of the project microbial turnover processes of phosphorous shall be investigated in forest soils and drivers for the corresponding populations as well as their activity pattern shall be described. Furthermore microbial transport and uptake systems for phosphorous should be characterized to understand the competition between plants and microbes for phosphorous in more detail, in relation to the availability of phosphorous and other nutrients. Therefore it is planned to investigate different soil compartments with different nutrient amounts (litter layer - rhizosphere - bulk soil). To reach the described goal molecular metagenomic methods will be used to characterize the structure and function of microbial communities as well as to describe the regulation of selected important pathways. In addition quantitative real time PCR and enzymatic measurements will be used to describe the abundance and activity of the corresponding populations and to describe their relevance for P turnover in the different soil compartments under investigation. With this we hope to reconstruct mainly the microbial phosphorous cycle and give important data to improve the model development of P dynamics in forest soils.

High Elevation Treeline Research

If one considers the high elevation treeline as a global phenomenon, many local drivers, which dominated the debate in the past, become less significant, they become modulators of a more fundamental, common cause. Our working hypothesis is that the major driver of treeline formation is the ability to form new structures, rather than the provision of raw materials for these structures. In other words, we suggest that the treeline is a sink (growth) rather then a source (photosynthesis) driven phenomenon, with temperature representing the single most important determinant. We do not question the influence of other factors, but we consider them to represent a suite of regional peculiarities, which may affect the actual position by not more then 100 m in elevation. A detailed discussion of the treeline issue can be found in: Our activities go in several directions. They include treering studies across the treeline ecotone (see ref. below), microclimate measurements at various latitudes and an assessment of the carbohydrate supply status at the tree limit. The worldwide treeline temperature assessment nears its end by 2001, when year-round data from ca. 30 different treeline sites around the globe will be available. As a standard procedure we measure root-zone temperature at 10 cm depth in the shade of tree crowns at the treeline using Tidbit (Onset Corp.) data loggers. Currently available data from 90 % of the stations average at seasonal mean ground temperatures of ca 6.5 C, with very little site to site variation, irrespective of latitude (minimum of 5.5 C on Mexican volcanos at 4000 m and maximum at some maritime temperate zone treelines of ca 7.5 C). The seasonal mean proved to be a better predictor of treeline position than warmest month temperatures or a suite of thermal sums tested. There are regions with no suitable treeline taxa where natural treelines occure at lower elevations (higher temperatures; e.g. Hawaii). In a work on carbohydrate pools we compare treelines in Mexico, the central Alps and in N-Sweden (Abisko). We see no decline of reserves as one approaches the existential limit of trees, in fact, carbohydrate and lipid stores reach a maximum at tree limit. Thus, it seems unlikely that carbon limitation is a cause of treeline formation.

Total suspended matter, particulate organic matter and particulate inorganic matter from discrete water samples during RV MARIA S MERIAN cruise MSM129/1

This dataset was collected during the cruise MSM129/1 with RV MARIA S. MERIAN from Warnemünde, Germany to St. John's, Canada. It contains suspended particulate matter, particulate organic matter and particulate inorganic matter measurements [mg/l] from water samples collected from the seawater supply (Reinseewassersystem, RSWS) to calibrate the turbidity data of the RSWS system. The outflow of a PocketFerrybox that was connected to the seawater supply in the hangar was used for sampling. It takes a substantial amount of time for the water to reach the hanger from the intake point. The time delay between the sensor readings of the RSWS and the PocketFerrybox was determined and the timestamps of the water sampling were adjusted accordingly. Given latitute and longitude refer to this corrected timestamp. The original time of water sampling in the hangar is given as an additional column with the comment time of sampling. To obtain suspended particulate matter concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F, 47 mm) under low vacuum. Filters were frozen immediately at -80 °C until gravimetric analysis in the laboratory at ICBM, Wilhelmshaven according to IOCCG recommendations.

Chlorophyll a and phaeophytin a measurements from discrete water samples during RV MARIA S. MERIAN cruise MSM129/1

This dataset was collected during the cruise MSM129/1 with RV MARIA S. MERIAN from Warnemünde, Germany to St. John's, Canada. It contains chlorophyll-a measurements [µg/l] from water samples collected from the seawater supply (Reinseewassersystem, RSWS) as well as from three CTD casts to calibrate the fluorometers of the RSWS system and the CTD, respectively. The outflow of a PocketFerrybox that was connected to the seawater supply in the hangar was used for sampling. It takes a substantial amount of time for the water to reach the hanger from the intake point. The time delay between the sensor readings of the RSWS and the PocketFerrybox was determined and the timestamps of the water sampling were adjusted accordingly. Given latitute and longitude refer to this corrected timestamp. The original time of water sampling in the hangar is given as an additional column with the comment time of sampling. To obtain chl-a concentrations, water samples were filtered onboard through 0.7 μm pore size, glass fiber filters (Whatmann GF/F) under low vacuum. Filters were frozen immediately at -80 °C until extraction in laboratory by 90% acetone method. Concentrations were calculated from fluorescence measured with a pre-calibrated Turner Design TD 7200-02 laboratory fluorometer (EPA445.0, Turner Manual).

Distribution and concentration of nutrients, carbon compounds and methane in water samples in the southern German Bight (North Sea) in February 2025 , during MOSES Sternfahrt 13

Previous Sternfahrten were mainly conducted in spring and summer. To cover the seasonal aspects more thoroughly, including a winter situation, Sternfahrt 13 was conducted in February 2025 (10–12 February). We used the RV Heincke (cruise HE653/2) instead of the RV Uthörn. The Heincke's draught is greater, so we could not reach all of our previous stations. Surface and bottom water samples were taken with a rosette; in the event of stratification in the water column, an additional sample was taken from the middle.

Potentiell TFA-emittierende Industriebetriebe (Datensatz)

Für die sehr persistente und sehr mobile Verbindung Trifluoracetat (TFA) werden die potentiell TFA-emittierenden Industriebetriebe dargestellt, die im Rahmen des Gutachtens „Trifluoracetat (TFA): Grundlagen für eine effektive Minimierung schaffen - Räumliche Analyse der Eintragspfade in den Wasserkreislauf“ (Laufzeit: August 2021-November 2022) ermittelt wurden. Wichtiger Hinweis: Informationen zu Industriebetrieben in Deutschland, die TFA direkt in die aquatische Umwelt emittieren, lagen nicht vor. Daher können keine Aussagen zur Relevanz des Eintragspfads Industrie für die TFA-Fracht in Fließgewässern in Deutschland und zum Standort TFA-emittierender Betriebe getroffen werden. Ob und in welchem Umfang die aufgezeigten Betriebe tatsächlich TFA in die aquatische Umwelt emittieren, kann an dieser Stelle nicht beantwortet werden. Hier wird daher lediglich die Lage der Betriebe in Deutschland dargestellt, welche laut der Angaben im E-PRTR-Register Betriebe sind, die Fluor oder Fluor-haltige Verbindungen emittieren oder nach Artikel 10 der REACH-Verordnung registriert sind. Die Daten lassen jedoch keine Rückschlüsse auf die tatsächlich im Betrieb produzierten und/oder verarbeiteten fluorierten Chemikalien zu. Genauere Hinweise befinden sich im Abschnitt Herkunft des Datenkatalogs.

Bebauungsplaene Gersheim/Bliesdalheim - Zum Rech

Bebauungspläne und Umringe der Gemeinde Gersheim (Saarland), Ortsteil Bliesdalheim:Bebauungsplan "Zum Rech" der Gemeinde Gersheim, Ortsteil Bliesdalheim

Überarbeitung der statistischen Guidance zu OECD Prüfrichtlinien (OECD Series on Testing and Assessment No. 54)

Hintergrund: Datenanforderungen der Europäischen Verordnungen für Industriechemikalien (REACH 1907/2006/EG), Pflanzenschutzmittel (1107/2009/EG), Biozide (528/2012/EG), Tierarzneimittel (2019/6/EG) und der Richtlinie für Arzneimittel (2004/28/EG und 2004/27/EG) basieren auf standardisierten ökotoxikologischen Labor- und Freilandtests., i.d.R. OECD-Prüfrichtlinien. Die Festlegung der statistischen Auswertung der Labordaten erfolgt derzeit in den einzelnen OECD-Prüfrichtlinien mit Hinweis auf die 2006 veröffentlichten Grundprinzipien der statistischen Auswertung für OECD-Prüfrichtlinien im OECD Dokument Nr. 54 'Current approaches in the statistical analysis of ecotoxicity data: a guidance to application'. Die im OECD Dokument Nr. 54 beschriebenen Methoden sind (teilweise) überholt und es fehlen geeignete Methoden für die Auswertung von nicht-normalverteilten Daten. Nicht-normalverteilte Daten kommen standardmäßig in aquatischen Mesokosmen und Freilandstudien an Bodenorganismen und Arthropoden vor, die eine zentrale Rolle in der Zulassung von Chemikalien spielen. Eine Überarbeitung des OECD Dokuments Nr. 54 ist dringend notwendig, weil es direkte Auswirkungen auf die statistische Auswertung aller OECD-Prüfrichtlinien für die Bewertung von Auswirkungen auf Nichtzielorganismen hat. Forschungsziele sind: 1. Aktualisierung von OECD Dokument Nr. 54 - Aufnahme fehlender Methoden-Prüfung und Aktualisierung enthaltener Methoden, 2. Überführung des OECD Dokument Nr. 54 in ein OECD Guidance Dokument (verbindlicher) - Ermöglichung direkter Verweise zu bestehenden OECD-Prüfrichtlinien und der Vereinheitlichung statistischer Verfahrensweisen innerhalb bestehender OECD Prüfrichtlinien sowie eine präzisierte Ableitung der abgeleiteten Endpunkte zur Verbesserung der Risikobewertung für Chemikalien.

European Union Emissions Trading System (EU ETS) data from the Union Registry, July 2026

This is the metadata for the EU Emission Trading System (EU ETS). EU ETS aims to reduce greenhouse gas emissions cost-effectively by setting a cap on the total amount of emissions from covered sectors. These sectors include power and heat generation, energy-intensive industries aviation and shipping within the European Economic Area. Under the system, companies receive or purchase emission allowances, each permitting the release of one tonne of CO₂ or equivalent gases. Businesses can trade these allowances, creating a financial incentive to reduce emissions. If a company emits less than its allowance, it can sell the surplus; if it exceeds the cap, it must buy more or face penalties. The cap is reduced annually, ensuring a steady decline in emissions over time. The system has gone through several phases, with the current Phase 4 running from 2021 to 2030. It also supports innovation and investment in low-carbon technologies through dedicated funds. Overall, the EU ETS plays a key role in helping the EU reach its climate neutrality goal by 2050. Data about the EU emission trading system (ETS). The EU ETS data viewer provides aggregated data on emissions and allowances, by country, sector and year. The data mainly comes from the Union Registry. Additional information on auctioning and scope corrections is included.

Energy Savings 2020: How to triple the impact of energy saving policies in Europe?

Europe needs to triple the impact of its energy efficiency policies to achieve its 2020 targets set last year, according to a new study written by Ecofys and the Fraunhofer ISI. The study reveals that the potential exists to reach the 20 percent energy saving by 2020 goal cost-efficiently, cutting energy bills by € 78 billion for European consumers and businesses annually by 2020. However, current EU policy is delivering only one-third of the potential cost-effective savings measures. Increased energy savings will also warrant easier and less expensive achievement of a 20 percent share of renewables in the EU energy mix in 2020. The study was commissioned jointly by the European Climate Foundation (ECF) and the Regulatory Assistance Project (RAP).

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